Arm of excavator



FIG. 1 is a front view of an arm of excavator showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a front view of the arm of excavator, in which two parts thereof are fully contracted;

FIG. 8 is a rear, right perspective view of the arm of excavator, in which the two parts are partly contracted; and,

FIG. 9 is a front, left perspective view of the arm of excavator in the condition shown in FIG. 8. 

The ornamental design for an arm of excavator, as shown and described. 